package adv4;

public class StringBuFtest {

	public static void main(String[] args) {
		StringBuilder s = new StringBuilder();
		s.append(2 > 1);
		s.append(Math.E);
		s.append(Math.random());
		s.append("nihao,达兴" + 3 + 4);
		System.out.println(s);
		s.delete(6, 16);
		System.out.println(s);
		s.append("昨天").append("达信").append("去相亲了");
		System.out.println(s);
	}

}
